/*!
 * Datepicker v1.0.7
 * https://fengyuanchen.github.io/datepicker
 *
 * Copyright 2014-present Chen Fengyuan
 * Released under the MIT license
 *
 * Date: 2019-02-19T12:18:04.827Z
 */

(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? factory(require('jquery')) :
        typeof define === 'function' && define.amd ? define(['jquery'], factory) :
            (global = global || self, factory(global.jQuery));
}(this, function ($) {
    'use strict';

    $ = $ && $.hasOwnProperty('default') ? $['default'] : $;

    function _classCallCheck(instance, Constructor) {
        if (!(instance instanceof Constructor)) {
            throw new TypeError("Cannot call a class as a function");
        }
    }

    function _defineProperties(target, props) {
        for (var i = 0; i < props.length; i++) {
            var descriptor = props[i];
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ("value" in descriptor) descriptor.writable = true;
            Object.defineProperty(target, descriptor.key, descriptor);
        }
    }

    function _createClass(Constructor, protoProps, staticProps) {
        if (protoProps) _defineProperties(Constructor.prototype, protoProps);
        if (staticProps) _defineProperties(Constructor, staticProps);
        return Constructor;
    }

    var DEFAULTS = {
        // Show the datepicker automatically when initialized
        autoShow: false,
        // Hide the datepicker automatically when picked
        autoHide: false,
        // Pick the initial date automatically when initialized
        autoPick: false,
        // Enable inline mode
        inline: false,
        // A element (or selector) for putting the datepicker
        container: null,
        // A element (or selector) for triggering the datepicker
        trigger: null,
        // The ISO language code (built-in: en-US)
        language: '',
        // The date string format
        format: 'mm/dd/yyyy',
        // The initial date
        date: null,
        // The start view date
        startDate: null,
        // The end view date
        endDate: null,
        // The start view when initialized
        startView: 0,
        // 0 for days, 1 for months, 2 for years
        // The start day of the week
        // 0 for Sunday, 1 for Monday, 2 for Tuesday, 3 for Wednesday,
        // 4 for Thursday, 5 for Friday, 6 for Saturday
        weekStart: 0,
        // Show year before month on the datepicker header
        yearFirst: false,
        // A string suffix to the year number.
        yearSuffix: '',
        // Days' name of the week.
        days: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
        // Shorter days' name
        daysShort: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
        // Shortest days' name
        daysMin: ['Su', 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa'],
        // Months' name
        months: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
        // Shorter months' name
        monthsShort: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
        // A element tag for each item of years, months and days
        itemTag: 'li',
        // A class (CSS) for muted date item
        mutedClass: 'muted',
        // A class (CSS) for picked date item
        pickedClass: 'picked',
        // A class (CSS) for disabled date item
        disabledClass: 'disabled',
        // A class (CSS) for highlight date item
        highlightedClass: 'highlighted',
        // The template of the datepicker
        template: '<div class="datepicker-container">' + '<div class="datepicker-panel" data-view="years picker">' + '<ul>' + '<li data-view="years prev">&lsaquo;</li>' + '<li data-view="years current"></li>' + '<li data-view="years next">&rsaquo;</li>' + '</ul>' + '<ul data-view="years"></ul>' + '</div>' + '<div class="datepicker-panel" data-view="months picker">' + '<ul>' + '<li data-view="year prev">&lsaquo;</li>' + '<li data-view="year current"></li>' + '<li data-view="year next">&rsaquo;</li>' + '</ul>' + '<ul data-view="months"></ul>' + '</div>' + '<div class="datepicker-panel" data-view="days picker">' + '<ul>' + '<li data-view="month prev">&lsaquo;</li>' + '<li data-view="month current"></li>' + '<li data-view="month next">&rsaquo;</li>' + '</ul>' + '<ul data-view="week"></ul>' + '<ul data-view="days"></ul>' + '</div>' + '</div>',
        // The offset top or bottom of the datepicker from the element
        offset: 10,
        // The `z-index` of the datepicker
        zIndex: 1000,
        // Filter each date item (return `false` to disable a date item)
        filter: null,
        // Event shortcuts
        show: null,
        hide: null,
        pick: null
    };

    var IS_BROWSER = typeof window !== 'undefined';
    var WINDOW = IS_BROWSER ? window : {};
    var IS_TOUCH_DEVICE = IS_BROWSER ? 'ontouchstart' in WINDOW.document.documentElement : false;
    var NAMESPACE = 'datepicker';
    var EVENT_CLICK = "click.".concat(NAMESPACE);
    var EVENT_FOCUS = "focus.".concat(NAMESPACE);
    var EVENT_HIDE = "hide.".concat(NAMESPACE);
    var EVENT_KEYUP = "keyup.".concat(NAMESPACE);
    var EVENT_PICK = "pick.".concat(NAMESPACE);
    var EVENT_RESIZE = "resize.".concat(NAMESPACE);
    var EVENT_SCROLL = "scroll.".concat(NAMESPACE);
    var EVENT_SHOW = "show.".concat(NAMESPACE);
    var EVENT_TOUCH_START = "touchstart.".concat(NAMESPACE);
    var CLASS_HIDE = "".concat(NAMESPACE, "-hide");
    var LANGUAGES = {};
    var VIEWS = {
        DAYS: 0,
        MONTHS: 1,
        YEARS: 2
    };

    var toString = Object.prototype.toString;

    function typeOf(obj) {
        return toString.call(obj).slice(8, -1).toLowerCase();
    }

    function isString(value) {
        return typeof value === 'string';
    }

    var isNaN = Number.isNaN || WINDOW.isNaN;

    function isNumber(value) {
        return typeof value === 'number' && !isNaN(value);
    }

    function isUndefined(value) {
        return typeof value === 'undefined';
    }

    function isDate(value) {
        return typeOf(value) === 'date' && !isNaN(value.getTime());
    }

    function proxy(fn, context) {
        for (var _len = arguments.length, args = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
            args[_key - 2] = arguments[_key];
        }

        return function () {
            for (var _len2 = arguments.length, args2 = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
                args2[_key2] = arguments[_key2];
            }

            return fn.apply(context, args.concat(args2));
        };
    }

    function selectorOf(view) {
        return "[data-view=\"".concat(view, "\"]");
    }

    function isLeapYear(year) {
        return year % 4 === 0 && year % 100 !== 0 || year % 400 === 0;
    }

    function getDaysInMonth(year, month) {
        return [31, isLeapYear(year) ? 29 : 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][month];
    }

    function getMinDay(year, month, day) {
        return Math.min(day, getDaysInMonth(year, month));
    }

    var formatParts = /(y|m|d)+/g;

    function parseFormat(format) {
        var source = String(format).toLowerCase();
        var parts = source.match(formatParts);

        if (!parts || parts.length === 0) {
            throw new Error('Invalid date format.');
        }

        format = {
            source: source,
            parts: parts
        };
        $.each(parts, function (i, part) {
            switch (part) {
                case 'dd':
                case 'd':
                    format.hasDay = true;
                    break;

                case 'mm':
                case 'm':
                    format.hasMonth = true;
                    break;

                case 'yyyy':
                case 'yy':
                    format.hasYear = true;
                    break;

                default:
            }
        });
        return format;
    }

    function getScrollParent(element) {
        var includeHidden = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
        var $element = $(element);
        var position = $element.css('position');
        var excludeStaticParent = position === 'absolute';
        var overflowRegex = includeHidden ? /auto|scroll|hidden/ : /auto|scroll/;
        var scrollParent = $element.parents().filter(function (index, parent) {
            var $parent = $(parent);

            if (excludeStaticParent && $parent.css('position') === 'static') {
                return false;
            }

            return overflowRegex.test($parent.css('overflow') + $parent.css('overflow-y') + $parent.css('overflow-x'));
        }).eq(0);
        return position === 'fixed' || !scrollParent.length ? $(element.ownerDocument || document) : scrollParent;
    }

    /**
     * Add leading zeroes to the given value
     * @param {number} value - The value to add.
     * @param {number} [length=1] - The expected value length.
     * @returns {string} Returns converted value.
     */

    function addLeadingZero(value) {
        var length = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
        var str = String(Math.abs(value));
        var i = str.length;
        var result = '';

        if (value < 0) {
            result += '-';
        }

        while (i < length) {
            i += 1;
            result += '0';
        }

        return result + str;
    }

    var REGEXP_DIGITS = /\d+/g;
    var methods = {
        // Show the datepicker
        show: function show() {
            if (!this.built) {
                this.build();
            }

            if (this.shown) {
                return;
            }

            if (this.trigger(EVENT_SHOW).isDefaultPrevented()) {
                return;
            }

            this.shown = true;
            this.$picker.removeClass(CLASS_HIDE).on(EVENT_CLICK, $.proxy(this.click, this));
            this.showView(this.options.startView);

            if (!this.inline) {
                this.$scrollParent.on(EVENT_SCROLL, $.proxy(this.place, this));
                $(window).on(EVENT_RESIZE, this.onResize = proxy(this.place, this));
                $(document).on(EVENT_CLICK, this.onGlobalClick = proxy(this.globalClick, this));
                $(document).on(EVENT_KEYUP, this.onGlobalKeyup = proxy(this.globalKeyup, this));

                if (IS_TOUCH_DEVICE) {
                    $(document).on(EVENT_TOUCH_START, this.onTouchStart = proxy(this.touchstart, this));
                }

                this.place();
            }
        },
        // Hide the datepicker
        hide: function hide() {
            if (!this.shown) {
                return;
            }

            if (this.trigger(EVENT_HIDE).isDefaultPrevented()) {
                return;
            }

            this.shown = false;
            this.$picker.addClass(CLASS_HIDE).off(EVENT_CLICK, this.click);

            if (!this.inline) {
                this.$scrollParent.off(EVENT_SCROLL, this.place);
                $(window).off(EVENT_RESIZE, this.onResize);
                $(document).off(EVENT_CLICK, this.onGlobalClick);
                $(document).off(EVENT_KEYUP, this.onGlobalKeyup);

                if (IS_TOUCH_DEVICE) {
                    $(document).off(EVENT_TOUCH_START, this.onTouchStart);
                }
            }
        },
        toggle: function toggle() {
            if (this.shown) {
                this.hide();
            } else {
                this.show();
            }
        },
        // Update the datepicker with the current input value
        update: function update() {
            var value = this.getValue();

            if (value === this.oldValue) {
                return;
            }

            this.setDate(value, true);
            this.oldValue = value;
        },

        /**
         * Pick the current date to the element
         *
         * @param {String} _view (private)
         */
        pick: function pick(_view) {
            var $this = this.$element;
            var date = this.date;

            if (this.trigger(EVENT_PICK, {
                    view: _view || '',
                    date: date
                }).isDefaultPrevented()) {
                return;
            }

            date = this.formatDate(this.date);
            this.setValue(date);

            if (this.isInput) {
                $this.trigger('input');
                $this.trigger('change');
            }
        },
        // Reset the datepicker
        reset: function reset() {
            this.setDate(this.initialDate, true);
            this.setValue(this.initialValue);

            if (this.shown) {
                this.showView(this.options.startView);
            }
        },

        /**
         * Get the month name with given argument or the current date
         *
         * @param {Number} month (optional)
         * @param {Boolean} shortForm (optional)
         * @return {String} (month name)
         */
        getMonthName: function getMonthName(month, shortForm) {
            var options = this.options;
            var monthsShort = options.monthsShort;
            var months = options.months;

            if ($.isNumeric(month)) {
                month = Number(month);
            } else if (isUndefined(shortForm)) {
                shortForm = month;
            }

            if (shortForm === true) {
                months = monthsShort;
            }

            return months[isNumber(month) ? month : this.date.getMonth()];
        },

        /**
         * Get the day name with given argument or the current date
         *
         * @param {Number} day (optional)
         * @param {Boolean} shortForm (optional)
         * @param {Boolean} min (optional)
         * @return {String} (day name)
         */
        getDayName: function getDayName(day, shortForm, min) {
            var options = this.options;
            var days = options.days;

            if ($.isNumeric(day)) {
                day = Number(day);
            } else {
                if (isUndefined(min)) {
                    min = shortForm;
                }

                if (isUndefined(shortForm)) {
                    shortForm = day;
                }
            }

            if (min) {
                days = options.daysMin;
            } else if (shortForm) {
                days = options.daysShort;
            }

            return days[isNumber(day) ? day : this.date.getDay()];
        },

        /**
         * Get the current date
         *
         * @param {Boolean} formatted (optional)
         * @return {Date|String} (date)
         */
        getDate: function getDate(formatted) {
            var date = this.date;
            return formatted ? this.formatDate(date) : new Date(date);
        },

        /**
         * Set the current date with a new date
         *
         * @param {Date} date
         * @param {Boolean} _updated (private)
         */
        setDate: function setDate(date, _updated) {
            var filter = this.options.filter;

            if (isDate(date) || isString(date)) {
                date = this.parseDate(date);

                if ($.isFunction(filter) && filter.call(this.$element, date, 'day') === false) {
                    return;
                }

                this.date = date;
                this.viewDate = new Date(date);

                if (!_updated) {
                    this.pick();
                }

                if (this.built) {
                    this.render();
                }
            }
        },

        /**
         * Set the start view date with a new date
         *
         * @param {Date|string|null} date
         */
        setStartDate: function setStartDate(date) {
            if (isDate(date) || isString(date)) {
                this.startDate = this.parseDate(date);
            } else {
                this.startDate = null;
            }

            if (this.built) {
                this.render();
            }
        },

        /**
         * Set the end view date with a new date
         *
         * @param {Date|string|null} date
         */
        setEndDate: function setEndDate(date) {
            if (isDate(date) || isString(date)) {
                this.endDate = this.parseDate(date);
            } else {
                this.endDate = null;
            }

            if (this.built) {
                this.render();
            }
        },

        /**
         * Parse a date string with the set date format
         *
         * @param {String} date
         * @return {Date} (parsed date)
         */
        parseDate: function parseDate(date) {
            var format = this.format;
            var parts = [];

            if (!isDate(date)) {
                if (isString(date)) {
                    parts = date.match(REGEXP_DIGITS) || [];
                }

                date = date ? new Date(date) : new Date();

                if (!isDate(date)) {
                    date = new Date();
                }

                if (parts.length === format.parts.length) {
                    $.each(parts, function (i, part) {
                        var value = parseInt(part, 10);

                        switch (format.parts[i]) {
                            case 'dd':
                            case 'd':
                                date.setDate(value);
                                break;

                            case 'mm':
                            case 'm':
                                date.setMonth(value - 1);
                                break;

                            case 'yy':
                                date.setFullYear(2000 + value);
                                break;

                            case 'yyyy':
                                // Converts 2-digit year to 2000+
                                date.setFullYear(part.length === 2 ? 2000 + value : value);
                                break;

                            default:
                        }
                    });
                }
            } // Ignore hours, minutes, seconds and milliseconds to avoid side effect (#192)


            return new Date(date.getFullYear(), date.getMonth(), date.getDate());
        },

        /**
         * Format a date object to a string with the set date format
         *
         * @param {Date} date
         * @return {String} (formatted date)
         */
        formatDate: function formatDate(date) {
            var format = this.format;
            var formatted = '';

            if (isDate(date)) {
                var year = date.getFullYear();
                var month = date.getMonth();
                var day = date.getDate();
                var values = {
                    d: day,
                    dd: addLeadingZero(day, 2),
                    m: month + 1,
                    mm: addLeadingZero(month + 1, 2),
                    yy: String(year).substring(2),
                    yyyy: addLeadingZero(year, 4)
                };
                formatted = format.source;
                $.each(format.parts, function (i, part) {
                    formatted = formatted.replace(part, values[part]);
                });
            }

            return formatted;
        },
        // Destroy the datepicker and remove the instance from the target element
        destroy: function destroy() {
            this.unbind();
            this.unbuild();
            this.$element.removeData(NAMESPACE);
        }
    };

    var handlers = {
        click: function click(e) {
            var $target = $(e.target);
            var options = this.options,
                date = this.date,
                viewDate = this.viewDate,
                format = this.format;
            e.stopPropagation();
            e.preventDefault();

            if ($target.hasClass('disabled')) {
                return;
            }

            var view = $target.data('view');
            var viewYear = viewDate.getFullYear();
            var viewMonth = viewDate.getMonth();
            var viewDay = viewDate.getDate();

            switch (view) {
                case 'years prev':
                case 'years next': {
                    viewYear = view === 'years prev' ? viewYear - 10 : viewYear + 10;
                    viewDate.setFullYear(viewYear);
                    viewDate.setDate(getMinDay(viewYear, viewMonth, viewDay));
                    this.renderYears();
                    break;
                }

                case 'year prev':
                case 'year next':
                    viewYear = view === 'year prev' ? viewYear - 1 : viewYear + 1;
                    viewDate.setFullYear(viewYear);
                    viewDate.setDate(getMinDay(viewYear, viewMonth, viewDay));
                    this.renderMonths();
                    break;

                case 'year current':
                    if (format.hasYear) {
                        this.showView(VIEWS.YEARS);
                    }

                    break;

                case 'year picked':
                    if (format.hasMonth) {
                        this.showView(VIEWS.MONTHS);
                    } else {
                        $target.addClass(options.pickedClass).siblings().removeClass(options.pickedClass);
                        this.hideView();
                    }

                    this.pick('year');
                    break;

                case 'year':
                    viewYear = parseInt($target.text(), 10); // Set date first to avoid month changing (#195)

                    date.setDate(getMinDay(viewYear, viewMonth, viewDay));
                    date.setFullYear(viewYear);
                    viewDate.setDate(getMinDay(viewYear, viewMonth, viewDay));
                    viewDate.setFullYear(viewYear);

                    if (format.hasMonth) {
                        this.showView(VIEWS.MONTHS);
                    } else {
                        $target.addClass(options.pickedClass).siblings().removeClass(options.pickedClass);
                        this.hideView();
                    }

                    this.pick('year');
                    break;

                case 'month prev':
                case 'month next':
                    viewMonth = view === 'month prev' ? viewMonth - 1 : viewMonth + 1;

                    if (viewMonth < 0) {
                        viewYear -= 1;
                        viewMonth += 12;
                    } else if (viewMonth > 11) {
                        viewYear += 1;
                        viewMonth -= 12;
                    }

                    viewDate.setFullYear(viewYear);
                    viewDate.setDate(getMinDay(viewYear, viewMonth, viewDay));
                    viewDate.setMonth(viewMonth);
                    this.renderDays();
                    break;

                case 'month current':
                    if (format.hasMonth) {
                        this.showView(VIEWS.MONTHS);
                    }

                    break;

                case 'month picked':
                    if (format.hasDay) {
                        this.showView(VIEWS.DAYS);
                    } else {
                        $target.addClass(options.pickedClass).siblings().removeClass(options.pickedClass);
                        this.hideView();
                    }

                    this.pick('month');
                    break;

                case 'month':
                    viewMonth = $.inArray($target.text(), options.monthsShort);
                    date.setFullYear(viewYear); // Set date before month to avoid month changing (#195)

                    date.setDate(getMinDay(viewYear, viewMonth, viewDay));
                    date.setMonth(viewMonth);
                    viewDate.setFullYear(viewYear);
                    viewDate.setDate(getMinDay(viewYear, viewMonth, viewDay));
                    viewDate.setMonth(viewMonth);

                    if (format.hasDay) {
                        this.showView(VIEWS.DAYS);
                    } else {
                        $target.addClass(options.pickedClass).siblings().removeClass(options.pickedClass);
                        this.hideView();
                    }

                    this.pick('month');
                    break;

                case 'day prev':
                case 'day next':
                case 'day':
                    if (view === 'day prev') {
                        viewMonth -= 1;
                    } else if (view === 'day next') {
                        viewMonth += 1;
                    }

                    viewDay = parseInt($target.text(), 10); // Set date to 1 to avoid month changing (#195)

                    date.setDate(1);
                    date.setFullYear(viewYear);
                    date.setMonth(viewMonth);
                    date.setDate(viewDay);
                    viewDate.setDate(1);
                    viewDate.setFullYear(viewYear);
                    viewDate.setMonth(viewMonth);
                    viewDate.setDate(viewDay);
                    this.renderDays();

                    if (view === 'day') {
                        this.hideView();
                    }

                    this.pick('day');
                    break;

                case 'day picked':
                    this.hideView();
                    this.pick('day');
                    break;

                default:
            }
        },
        globalClick: function globalClick(_ref) {
            var target = _ref.target;
            var element = this.element,
                $trigger = this.$trigger;
            var trigger = $trigger[0];
            var hidden = true;

            while (target !== document) {
                if (target === trigger || target === element) {
                    hidden = false;
                    break;
                }

                target = target.parentNode;
            }

            if (hidden) {
                this.hide();
            }
        },
        keyup: function keyup() {
            this.update();
        },
        globalKeyup: function globalKeyup(_ref2) {
            var target = _ref2.target,
                key = _ref2.key,
                keyCode = _ref2.keyCode;

            if (this.isInput && target !== this.element && this.shown && (key === 'Tab' || keyCode === 9)) {
                this.hide();
            }
        },
        touchstart: function touchstart(_ref3) {
            var target = _ref3.target;

            // Emulate click in touch devices to support hiding the picker automatically (#197).
            if (this.isInput && target !== this.element && !$.contains(this.$picker[0], target)) {
                this.hide();
                this.element.blur();
            }
        }
    };

    var render = {
        render: function render() {
            this.renderYears();
            this.renderMonths();
            this.renderDays();
        },
        renderWeek: function renderWeek() {
            var _this = this;

            var items = [];
            var _this$options = this.options,
                weekStart = _this$options.weekStart,
                daysMin = _this$options.daysMin;
            weekStart = parseInt(weekStart, 10) % 7;
            daysMin = daysMin.slice(weekStart).concat(daysMin.slice(0, weekStart));
            $.each(daysMin, function (i, day) {
                items.push(_this.createItem({
                    text: day
                }));
            });
            this.$week.html(items.join(''));
        },
        renderYears: function renderYears() {
            var options = this.options,
                startDate = this.startDate,
                endDate = this.endDate;
            var disabledClass = options.disabledClass,
                filter = options.filter,
                yearSuffix = options.yearSuffix;
            var viewYear = this.viewDate.getFullYear();
            var now = new Date();
            var thisYear = now.getFullYear();
            var year = this.date.getFullYear();
            var start = -5;
            var end = 6;
            var items = [];
            var prevDisabled = false;
            var nextDisabled = false;
            var i;

            for (i = start; i <= end; i += 1) {
                var date = new Date(viewYear + i, 1, 1);
                var disabled = false;

                if (startDate) {
                    disabled = date.getFullYear() < startDate.getFullYear();

                    if (i === start) {
                        prevDisabled = disabled;
                    }
                }

                if (!disabled && endDate) {
                    disabled = date.getFullYear() > endDate.getFullYear();

                    if (i === end) {
                        nextDisabled = disabled;
                    }
                }

                if (!disabled && filter) {
                    disabled = filter.call(this.$element, date, 'year') === false;
                }

                var picked = viewYear + i === year;
                var view = picked ? 'year picked' : 'year';
                items.push(this.createItem({
                    picked: picked,
                    disabled: disabled,
                    text: viewYear + i,
                    view: disabled ? 'year disabled' : view,
                    highlighted: date.getFullYear() === thisYear
                }));
            }

            this.$yearsPrev.toggleClass(disabledClass, prevDisabled);
            this.$yearsNext.toggleClass(disabledClass, nextDisabled);
            this.$yearsCurrent.toggleClass(disabledClass, true).html("".concat(viewYear + start + yearSuffix, " - ").concat(viewYear + end).concat(yearSuffix));
            this.$years.html(items.join(''));
        },
        renderMonths: function renderMonths() {
            var options = this.options,
                startDate = this.startDate,
                endDate = this.endDate,
                viewDate = this.viewDate;
            var disabledClass = options.disabledClass || '';
            var months = options.monthsShort;
            var filter = $.isFunction(options.filter) && options.filter;
            var viewYear = viewDate.getFullYear();
            var now = new Date();
            var thisYear = now.getFullYear();
            var thisMonth = now.getMonth();
            var year = this.date.getFullYear();
            var month = this.date.getMonth();
            var items = [];
            var prevDisabled = false;
            var nextDisabled = false;
            var i;

            for (i = 0; i <= 11; i += 1) {
                var date = new Date(viewYear, i, 1);
                var disabled = false;

                if (startDate) {
                    prevDisabled = date.getFullYear() === startDate.getFullYear();
                    disabled = prevDisabled && date.getMonth() < startDate.getMonth();
                }

                if (!disabled && endDate) {
                    nextDisabled = date.getFullYear() === endDate.getFullYear();
                    disabled = nextDisabled && date.getMonth() > endDate.getMonth();
                }

                if (!disabled && filter) {
                    disabled = filter.call(this.$element, date, 'month') === false;
                }

                var picked = viewYear === year && i === month;
                var view = picked ? 'month picked' : 'month';
                items.push(this.createItem({
                    disabled: disabled,
                    picked: picked,
                    highlighted: viewYear === thisYear && date.getMonth() === thisMonth,
                    index: i,
                    text: months[i],
                    view: disabled ? 'month disabled' : view
                }));
            }

            this.$yearPrev.toggleClass(disabledClass, prevDisabled);
            this.$yearNext.toggleClass(disabledClass, nextDisabled);
            this.$yearCurrent.toggleClass(disabledClass, prevDisabled && nextDisabled).html(viewYear + options.yearSuffix || '');
            this.$months.html(items.join(''));
        },
        renderDays: function renderDays() {
            var $element = this.$element,
                options = this.options,
                startDate = this.startDate,
                endDate = this.endDate,
                viewDate = this.viewDate,
                currentDate = this.date;
            var disabledClass = options.disabledClass,
                filter = options.filter,
                months = options.months,
                weekStart = options.weekStart,
                yearSuffix = options.yearSuffix;
            var viewYear = viewDate.getFullYear();
            var viewMonth = viewDate.getMonth();
            var now = new Date();
            var thisYear = now.getFullYear();
            var thisMonth = now.getMonth();
            var thisDay = now.getDate();
            var year = currentDate.getFullYear();
            var month = currentDate.getMonth();
            var day = currentDate.getDate();
            var length;
            var i;
            var n; // Days of prev month
            // -----------------------------------------------------------------------

            var prevItems = [];
            var prevViewYear = viewYear;
            var prevViewMonth = viewMonth;
            var prevDisabled = false;

            if (viewMonth === 0) {
                prevViewYear -= 1;
                prevViewMonth = 11;
            } else {
                prevViewMonth -= 1;
            } // The length of the days of prev month


            length = getDaysInMonth(prevViewYear, prevViewMonth); // The first day of current month

            var firstDay = new Date(viewYear, viewMonth, 1); // The visible length of the days of prev month
            // [0,1,2,3,4,5,6] - [0,1,2,3,4,5,6] => [-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6]

            n = firstDay.getDay() - parseInt(weekStart, 10) % 7; // [-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6] => [1,2,3,4,5,6,7]

            if (n <= 0) {
                n += 7;
            }

            if (startDate) {
                prevDisabled = firstDay.getTime() <= startDate.getTime();
            }

            for (i = length - (n - 1); i <= length; i += 1) {
                var prevViewDate = new Date(prevViewYear, prevViewMonth, i);
                var disabled = false;

                if (startDate) {
                    disabled = prevViewDate.getTime() < startDate.getTime();
                }

                if (!disabled && filter) {
                    disabled = filter.call($element, prevViewDate, 'day') === false;
                }

                prevItems.push(this.createItem({
                    disabled: disabled,
                    highlighted: prevViewYear === thisYear && prevViewMonth === thisMonth && prevViewDate.getDate() === thisDay,
                    muted: true,
                    picked: prevViewYear === year && prevViewMonth === month && i === day,
                    text: i,
                    view: 'day prev'
                }));
            } // Days of next month
            // -----------------------------------------------------------------------


            var nextItems = [];
            var nextViewYear = viewYear;
            var nextViewMonth = viewMonth;
            var nextDisabled = false;

            if (viewMonth === 11) {
                nextViewYear += 1;
                nextViewMonth = 0;
            } else {
                nextViewMonth += 1;
            } // The length of the days of current month


            length = getDaysInMonth(viewYear, viewMonth); // The visible length of next month (42 means 6 rows and 7 columns)

            n = 42 - (prevItems.length + length); // The last day of current month

            var lastDate = new Date(viewYear, viewMonth, length);

            if (endDate) {
                nextDisabled = lastDate.getTime() >= endDate.getTime();
            }

            for (i = 1; i <= n; i += 1) {
                var date = new Date(nextViewYear, nextViewMonth, i);
                var picked = nextViewYear === year && nextViewMonth === month && i === day;
                var _disabled = false;

                if (endDate) {
                    _disabled = date.getTime() > endDate.getTime();
                }

                if (!_disabled && filter) {
                    _disabled = filter.call($element, date, 'day') === false;
                }

                nextItems.push(this.createItem({
                    disabled: _disabled,
                    picked: picked,
                    highlighted: nextViewYear === thisYear && nextViewMonth === thisMonth && date.getDate() === thisDay,
                    muted: true,
                    text: i,
                    view: 'day next'
                }));
            } // Days of current month
            // -----------------------------------------------------------------------


            var items = [];

            for (i = 1; i <= length; i += 1) {
                var _date = new Date(viewYear, viewMonth, i);

                var _disabled2 = false;

                if (startDate) {
                    _disabled2 = _date.getTime() < startDate.getTime();
                }

                if (!_disabled2 && endDate) {
                    _disabled2 = _date.getTime() > endDate.getTime();
                }

                if (!_disabled2 && filter) {
                    _disabled2 = filter.call($element, _date, 'day') === false;
                }

                var _picked = viewYear === year && viewMonth === month && i === day;

                var view = _picked ? 'day picked' : 'day';
                items.push(this.createItem({
                    disabled: _disabled2,
                    picked: _picked,
                    highlighted: viewYear === thisYear && viewMonth === thisMonth && _date.getDate() === thisDay,
                    text: i,
                    view: _disabled2 ? 'day disabled' : view
                }));
            } // Render days picker
            // -----------------------------------------------------------------------


            this.$monthPrev.toggleClass(disabledClass, prevDisabled);
            this.$monthNext.toggleClass(disabledClass, nextDisabled);
            this.$monthCurrent.toggleClass(disabledClass, prevDisabled && nextDisabled).html(options.yearFirst ? "".concat(viewYear + yearSuffix, " ").concat(months[viewMonth]) : "".concat(months[viewMonth], " ").concat(viewYear).concat(yearSuffix));
            this.$days.html(prevItems.join('') + items.join('') + nextItems.join(''));
        }
    };

    var CLASS_TOP_LEFT = "".concat(NAMESPACE, "-top-left");
    var CLASS_TOP_RIGHT = "".concat(NAMESPACE, "-top-right");
    var CLASS_BOTTOM_LEFT = "".concat(NAMESPACE, "-bottom-left");
    var CLASS_BOTTOM_RIGHT = "".concat(NAMESPACE, "-bottom-right");
    var CLASS_PLACEMENTS = [CLASS_TOP_LEFT, CLASS_TOP_RIGHT, CLASS_BOTTOM_LEFT, CLASS_BOTTOM_RIGHT].join(' ');

    var Datepicker =
        /*#__PURE__*/
        function () {
            function Datepicker(element) {
                var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

                _classCallCheck(this, Datepicker);

                this.$element = $(element);
                this.element = element;
                this.options = $.extend({}, DEFAULTS, LANGUAGES[options.language], $.isPlainObject(options) && options);
                this.$scrollParent = getScrollParent(element, true);
                this.built = false;
                this.shown = false;
                this.isInput = false;
                this.inline = false;
                this.initialValue = '';
                this.initialDate = null;
                this.startDate = null;
                this.endDate = null;
                this.init();
            }

            _createClass(Datepicker, [{
                key: "init",
                value: function init() {
                    var $this = this.$element,
                        options = this.options;
                    var startDate = options.startDate,
                        endDate = options.endDate,
                        date = options.date;
                    this.$trigger = $(options.trigger);
                    this.isInput = $this.is('input') || $this.is('textarea');
                    this.inline = options.inline && (options.container || !this.isInput);
                    this.format = parseFormat(options.format);
                    var initialValue = this.getValue();
                    this.initialValue = initialValue;
                    this.oldValue = initialValue;
                    date = this.parseDate(date || initialValue);

                    if (startDate) {
                        startDate = this.parseDate(startDate);

                        if (date.getTime() < startDate.getTime()) {
                            date = new Date(startDate);
                        }

                        this.startDate = startDate;
                    }

                    if (endDate) {
                        endDate = this.parseDate(endDate);

                        if (startDate && endDate.getTime() < startDate.getTime()) {
                            endDate = new Date(startDate);
                        }

                        if (date.getTime() > endDate.getTime()) {
                            date = new Date(endDate);
                        }

                        this.endDate = endDate;
                    }

                    this.date = date;
                    this.viewDate = new Date(date);
                    this.initialDate = new Date(this.date);
                    this.bind();

                    if (options.autoShow || this.inline) {
                        this.show();
                    }

                    if (options.autoPick) {
                        this.pick();
                    }
                }
            }, {
                key: "build",
                value: function build() {
                    if (this.built) {
                        return;
                    }

                    this.built = true;
                    var $this = this.$element,
                        options = this.options;
                    var $picker = $(options.template);
                    this.$picker = $picker;
                    this.$week = $picker.find(selectorOf('week')); // Years view

                    this.$yearsPicker = $picker.find(selectorOf('years picker'));
                    this.$yearsPrev = $picker.find(selectorOf('years prev'));
                    this.$yearsNext = $picker.find(selectorOf('years next'));
                    this.$yearsCurrent = $picker.find(selectorOf('years current'));
                    this.$years = $picker.find(selectorOf('years')); // Months view

                    this.$monthsPicker = $picker.find(selectorOf('months picker'));
                    this.$yearPrev = $picker.find(selectorOf('year prev'));
                    this.$yearNext = $picker.find(selectorOf('year next'));
                    this.$yearCurrent = $picker.find(selectorOf('year current'));
                    this.$months = $picker.find(selectorOf('months')); // Days view

                    this.$daysPicker = $picker.find(selectorOf('days picker'));
                    this.$monthPrev = $picker.find(selectorOf('month prev'));
                    this.$monthNext = $picker.find(selectorOf('month next'));
                    this.$monthCurrent = $picker.find(selectorOf('month current'));
                    this.$days = $picker.find(selectorOf('days'));

                    if (this.inline) {
                        $(options.container || $this).append($picker.addClass("".concat(NAMESPACE, "-inline")));
                    } else {
                        $(document.body).append($picker.addClass("".concat(NAMESPACE, "-dropdown")));
                        $picker.addClass(CLASS_HIDE).css({
                            zIndex: parseInt(options.zIndex, 10)
                        });
                    }

                    this.renderWeek();
                }
            }, {
                key: "unbuild",
                value: function unbuild() {
                    if (!this.built) {
                        return;
                    }

                    this.built = false;
                    this.$picker.remove();
                }
            }, {
                key: "bind",
                value: function bind() {
                    var options = this.options,
                        $this = this.$element;

                    if ($.isFunction(options.show)) {
                        $this.on(EVENT_SHOW, options.show);
                    }

                    if ($.isFunction(options.hide)) {
                        $this.on(EVENT_HIDE, options.hide);
                    }

                    if ($.isFunction(options.pick)) {
                        $this.on(EVENT_PICK, options.pick);
                    }

                    if (this.isInput) {
                        $this.on(EVENT_KEYUP, $.proxy(this.keyup, this));
                    }

                    if (!this.inline) {
                        if (options.trigger) {
                            this.$trigger.on(EVENT_CLICK, $.proxy(this.toggle, this));
                        } else if (this.isInput) {
                            $this.on(EVENT_FOCUS, $.proxy(this.show, this));
                        } else {
                            $this.on(EVENT_CLICK, $.proxy(this.show, this));
                        }
                    }
                }
            }, {
                key: "unbind",
                value: function unbind() {
                    var $this = this.$element,
                        options = this.options;

                    if ($.isFunction(options.show)) {
                        $this.off(EVENT_SHOW, options.show);
                    }

                    if ($.isFunction(options.hide)) {
                        $this.off(EVENT_HIDE, options.hide);
                    }

                    if ($.isFunction(options.pick)) {
                        $this.off(EVENT_PICK, options.pick);
                    }

                    if (this.isInput) {
                        $this.off(EVENT_KEYUP, this.keyup);
                    }

                    if (!this.inline) {
                        if (options.trigger) {
                            this.$trigger.off(EVENT_CLICK, this.toggle);
                        } else if (this.isInput) {
                            $this.off(EVENT_FOCUS, this.show);
                        } else {
                            $this.off(EVENT_CLICK, this.show);
                        }
                    }
                }
            }, {
                key: "showView",
                value: function showView(view) {
                    var $yearsPicker = this.$yearsPicker,
                        $monthsPicker = this.$monthsPicker,
                        $daysPicker = this.$daysPicker,
                        format = this.format;

                    if (format.hasYear || format.hasMonth || format.hasDay) {
                        switch (Number(view)) {
                            case VIEWS.YEARS:
                                $monthsPicker.addClass(CLASS_HIDE);
                                $daysPicker.addClass(CLASS_HIDE);

                                if (format.hasYear) {
                                    this.renderYears();
                                    $yearsPicker.removeClass(CLASS_HIDE);
                                    this.place();
                                } else {
                                    this.showView(VIEWS.DAYS);
                                }

                                break;

                            case VIEWS.MONTHS:
                                $yearsPicker.addClass(CLASS_HIDE);
                                $daysPicker.addClass(CLASS_HIDE);

                                if (format.hasMonth) {
                                    this.renderMonths();
                                    $monthsPicker.removeClass(CLASS_HIDE);
                                    this.place();
                                } else {
                                    this.showView(VIEWS.YEARS);
                                }

                                break;
                            // case VIEWS.DAYS:

                            default:
                                $yearsPicker.addClass(CLASS_HIDE);
                                $monthsPicker.addClass(CLASS_HIDE);

                                if (format.hasDay) {
                                    this.renderDays();
                                    $daysPicker.removeClass(CLASS_HIDE);
                                    this.place();
                                } else {
                                    this.showView(VIEWS.MONTHS);
                                }

                        }
                    }
                }
            }, {
                key: "hideView",
                value: function hideView() {
                    if (!this.inline && this.options.autoHide) {
                        this.hide();
                    }
                }
            }, {
                key: "place",
                value: function place() {
                    if (this.inline) {
                        return;
                    }

                    var $this = this.$element,
                        options = this.options,
                        $picker = this.$picker;
                    var containerWidth = $(document).outerWidth();
                    var containerHeight = $(document).outerHeight();
                    var elementWidth = $this.outerWidth();
                    var elementHeight = $this.outerHeight();
                    var width = $picker.width();
                    var height = $picker.height();

                    var _$this$offset = $this.offset(),
                        left = _$this$offset.left,
                        top = _$this$offset.top;

                    var offset = parseFloat(options.offset);
                    var placement = CLASS_TOP_LEFT;

                    if (isNaN(offset)) {
                        offset = 10;
                    }

                    if (top > height && top + elementHeight + height > containerHeight) {
                        top -= height + offset;
                        placement = CLASS_BOTTOM_LEFT;
                    } else {
                        top += elementHeight + offset;
                    }

                    if (left + width > containerWidth) {
                        left += elementWidth - width;
                        placement = placement.replace('left', 'right');
                    }

                    $picker.removeClass(CLASS_PLACEMENTS).addClass(placement).css({
                        top: top,
                        left: left
                    });
                } // A shortcut for triggering custom events

            }, {
                key: "trigger",
                value: function trigger(type, data) {
                    var e = $.Event(type, data);
                    this.$element.trigger(e);
                    return e;
                }
            }, {
                key: "createItem",
                value: function createItem(data) {
                    var options = this.options;
                    var itemTag = options.itemTag;
                    var item = {
                        text: '',
                        view: '',
                        muted: false,
                        picked: false,
                        disabled: false,
                        highlighted: false
                    };
                    var classes = [];
                    $.extend(item, data);

                    if (item.muted) {
                        classes.push(options.mutedClass);
                    }

                    if (item.highlighted) {
                        classes.push(options.highlightedClass);
                    }

                    if (item.picked) {
                        classes.push(options.pickedClass);
                    }

                    if (item.disabled) {
                        classes.push(options.disabledClass);
                    }

                    return "<".concat(itemTag, " class=\"").concat(classes.join(' '), "\" data-view=\"").concat(item.view, "\">").concat(item.text, "</").concat(itemTag, ">");
                }
            }, {
                key: "getValue",
                value: function getValue() {
                    var $this = this.$element;
                    return this.isInput ? $this.val() : $this.text();
                }
            }, {
                key: "setValue",
                value: function setValue() {
                    var value = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
                    var $this = this.$element;

                    if (this.isInput) {
                        $this.val(value);
                    } else if (!this.inline || this.options.container) {
                        $this.text(value);
                    }
                }
            }], [{
                key: "setDefaults",
                value: function setDefaults() {
                    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
                    $.extend(DEFAULTS, LANGUAGES[options.language], $.isPlainObject(options) && options);
                }
            }]);

            return Datepicker;
        }();

    if ($.extend) {
        $.extend(Datepicker.prototype, render, handlers, methods);
    }

    if ($.fn) {
        var AnotherDatepicker = $.fn.datepicker;

        $.fn.datepicker = function jQueryDatepicker(option) {
            for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0),
                     _key = 1; _key < _len; _key++) {
                args[_key - 1] = arguments[_key];
            }

            var result;
            this.each(function (i, element) {
                var $element = $(element);
                var isDestroy = option === 'destroy';
                var datepicker = $element.data(NAMESPACE);

                if (!datepicker) {
                    if (isDestroy) {
                        return;
                    }

                    var options = $.extend({}, $element.data(), $.isPlainObject(option) && option);
                    datepicker = new Datepicker(element, options);
                    $element.data(NAMESPACE, datepicker);
                }

                if (isString(option)) {
                    var fn = datepicker[option];

                    if ($.isFunction(fn)) {
                        result = fn.apply(datepicker, args);

                        if (isDestroy) {
                            $element.removeData(NAMESPACE);
                        }
                    }
                }
            });
            return !isUndefined(result) ? result : this;
        };

        $.fn.datepicker.Constructor = Datepicker;
        $.fn.datepicker.languages = LANGUAGES;
        $.fn.datepicker.setDefaults = Datepicker.setDefaults;

        $.fn.datepicker.noConflict = function noConflict() {
            $.fn.datepicker = AnotherDatepicker;
            return this;
        };
    }

}));